Home / 61,657.03-85,086.75-42,805.09

Finding the Fourth Proportional to 61,657.03, 85,086.75 and 42,805.09

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Solution

The fourth proportional to 61,657.03, 85,086.75 and 42,805.09 is: 59,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,657.03 : 85,086.75 = 42,805.09 : x
  2. Step 2: Convert to fraction form
    61,657.03/85,086.75 = 42,805.09/x
  3. Step 3: Cross multiply
    61,657.03x = 85,086.75 × 42,805.09
  4. Step 4: Simplify right side
    61,657.03x = 3,642,145,991.56
  5. Step 5: Solve for x
    x = 3,642,145,991.56/61,657.03
  6. Step 6: Final answer
    x = 59,071.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.